package com.example.demo.config;

import com.example.demo.common.AppVariable;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @author vivi
 * @description
 * @date 2024/6/2
 */
// 登录拦截器
public class LoginIntercept implements HandlerInterceptor {
    @Override
    public boolean preHandle (HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession(false);
        if (session != null && session.getAttribute(AppVariable.USER_SESSION_KET) != null) {
            // 用户已登录
            return true;
        }
        // 用户未登录
        response.sendRedirect("/login.html");
        return false;
    }
}

























